KR920702893A - An actuator assembly for an optical disc system and a method of focusing an optical beam in the actuator assembly - Google Patents
An actuator assembly for an optical disc system and a method of focusing an optical beam in the actuator assemblyInfo
- Publication number
- KR920702893A KR920702893A KR1019910700718A KR910700718A KR920702893A KR 920702893 A KR920702893 A KR 920702893A KR 1019910700718 A KR1019910700718 A KR 1019910700718A KR 910700718 A KR910700718 A KR 910700718A KR 920702893 A KR920702893 A KR 920702893A
- Authority
- KR
- South Korea
- Prior art keywords
- actuator
- channel
- center
- mass
- rail
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/0857—Arrangements for mechanically moving the whole head
- G11B7/08582—Sled-type positioners
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0927—Electromechanical actuators for lens positioning for focusing only
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0933—Details of stationary parts
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명의 작동기 몸체, 래디얼 코일 및 촛점 조립체의 사시도이다.1 is a perspective view of an actuator body, a radial coil and a focus assembly of the present invention.
제2도는 플렉스포일(flexfoil)을 도시하기 위해 부분절단된 작동기몸체, 래디얼 구동 조립체, 촛점 조립체 및 슬라이드 레일을 포함하는 본 발명의 장치의 사시도이다.2 is a perspective view of the device of the present invention that includes an actuator body, a radial drive assembly, a focus assembly, and a slide rail cut away to show the flexfoil.
제3도는 슬라이드 레일상에서 주행하는 작동기몸체와 부착 부품을 도시하는 본 발명의 장치의 평면도이다.3 is a plan view of the device of the present invention showing an actuator body and attachment parts running on a slide rail.
제4도는 슬라이드 레일상에서 주행하는 작동기몸체와, 거울에서 반사되어 렌즈를 통해 광학 디스크로 이동하는 광학 빔을 도시하는 제2도의 4-4선에 따른 본 발명의 측단면도를 도시한다.4 shows a cross-sectional side view of the invention according to line 4-4 of FIG. 2 showing the actuator body running on the slide rail and the optical beam reflected from the mirror and traveling through the lens to the optical disc.
제5도는 작동기몸체의 정면도를 도시하며 내부극피스와 접촉하는 슬라이드핀을 도시한다.5 shows a front view of the actuator body and shows the slide pin in contact with the inner pole piece.
Claims (23)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/259,129 US4945526A (en) | 1988-10-18 | 1988-10-18 | Actuator assembly for optical disk systems |
PCT/NL1989/000081 WO1991007747A1 (en) | 1988-10-18 | 1989-11-11 | Actuator assembly for optical disk systems |
Publications (1)
Publication Number | Publication Date |
---|---|
KR920702893A true KR920702893A (en) | 1992-10-28 |
Family
ID=22983652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910700718A KR920702893A (en) | 1988-10-18 | 1989-11-11 | An actuator assembly for an optical disc system and a method of focusing an optical beam in the actuator assembly |
Country Status (6)
Country | Link |
---|---|
US (1) | US4945526A (en) |
EP (1) | EP0456661B1 (en) |
JP (1) | JPH05504645A (en) |
KR (1) | KR920702893A (en) |
DE (1) | DE68928755T2 (en) |
WO (1) | WO1991007747A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6141300A (en) | 1989-06-20 | 2000-10-31 | Discovision Associates | Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same |
US5265079A (en) | 1991-02-15 | 1993-11-23 | Applied Magnetics Corporation | Seek actuator for optical recording |
US5677899A (en) | 1991-02-15 | 1997-10-14 | Discovision Associates | Method for moving carriage assembly from initial position to target position relative to storage medium |
US5729511A (en) | 1991-02-15 | 1998-03-17 | Discovision Associates | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
US6236625B1 (en) | 1991-02-15 | 2001-05-22 | Discovision Associates | Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
US6069857A (en) | 1991-02-15 | 2000-05-30 | Discovision Associates | Optical disc system having improved circuitry for performing blank sector check on readable disc |
US5808980A (en) * | 1991-02-15 | 1998-09-15 | Discovision Associates | Seek actuator for optical recording |
US5485437A (en) * | 1993-02-05 | 1996-01-16 | Discovision Associates | Shock-resistant, electrostatically actuated pick-up for optical recording and playback |
US6434087B1 (en) | 1995-01-25 | 2002-08-13 | Discovision Associates | Optical disc system and method for controlling bias coil and light source to process information on a storage medium |
EP3413446B1 (en) * | 2016-02-02 | 2020-07-08 | Harmonic Drive Systems Inc. | Movable coil type linear motor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4012778A (en) * | 1975-11-19 | 1977-03-15 | Xerox Corporation | Linear actuator |
FR2474740A1 (en) * | 1980-01-24 | 1981-07-31 | Thomson Csf | MOBILE CREW OF A VIDEODISK RECORDER PLAYER, AND VIDEO DEVICE RECORDER COMPRISING SUCH A CREW |
JPS5848033U (en) * | 1981-09-22 | 1983-03-31 | 萬世工業株式会社 | lens drive device |
US4427905A (en) * | 1981-11-16 | 1984-01-24 | Dma Sytems Corporation | Combined linear motor and side mounted outboard carriage |
FR2522861B1 (en) * | 1982-03-02 | 1988-01-08 | Thomson Csf | OPTICAL WRITE-READING HEAD OF AN OPTICAL DISC AND OPTICAL DEVICE ASSOCIATED WITH SUCH A HEAD |
NL8204981A (en) * | 1982-12-24 | 1984-07-16 | Philips Nv | ELECTRODYNAMIC DEVICE FOR TRANSLATING AN OBJECTIVE. |
NL8300133A (en) * | 1983-01-14 | 1984-08-01 | Philips Nv | Apparatus for registering and / or reading information using a radiation beam. |
US4504935A (en) * | 1983-02-14 | 1985-03-12 | U.S. Philips Corporation | Electrodynamic focus and radial slide drive for an optical disc system |
JPS6010467A (en) * | 1983-06-30 | 1985-01-19 | Tokico Ltd | Magnetic disc storage device |
US4862441A (en) * | 1986-05-27 | 1989-08-29 | Mitsubishi Denki Kabushiki Kaisha | Carriage assembly |
JPS63257927A (en) * | 1987-04-15 | 1988-10-25 | Pioneer Electronic Corp | Pickup actuator |
EP0350225B1 (en) * | 1988-07-07 | 1994-01-26 | Oki Electric Industry Company, Limited | Optical head apparatus |
-
1988
- 1988-10-18 US US07/259,129 patent/US4945526A/en not_active Expired - Lifetime
-
1989
- 1989-11-11 EP EP90902089A patent/EP0456661B1/en not_active Expired - Lifetime
- 1989-11-11 DE DE68928755T patent/DE68928755T2/en not_active Expired - Fee Related
- 1989-11-11 WO PCT/NL1989/000081 patent/WO1991007747A1/en active IP Right Grant
- 1989-11-11 JP JP90503211A patent/JPH05504645A/en active Pending
- 1989-11-11 KR KR1019910700718A patent/KR920702893A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0456661A1 (en) | 1991-11-21 |
US4945526A (en) | 1990-07-31 |
WO1991007747A1 (en) | 1991-05-30 |
DE68928755T2 (en) | 1999-03-04 |
JPH05504645A (en) | 1993-07-15 |
EP0456661B1 (en) | 1998-07-22 |
DE68928755D1 (en) | 1998-08-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
AMND | Amendment | ||
E902 | Notification of reason for refusal | ||
AMND | Amendment | ||
E601 | Decision to refuse application | ||
J201 | Request for trial against refusal decision | ||
J301 | Trial decision |
Free format text: TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 19980507 Effective date: 19990130 |